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3 years ago

15

A calcium ion has 20 protons and 18 electrons. Each proton has a +1 charge and each electron has a -1 charge. What is the charge

of the calcium ion?

1 answer:

kolbaska11 [484]3 years ago

7 0

Answer:

Ca^(2+) or the charge is 2 plus or just 2

Step-by-step explanation:

Charge on the calcium ion = 20*(+1) + 18*(-1) = 20 - 18 = 2

The charge on the calcium ion is +2

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In the diagram, GH bisects ∠FGI.

Diano4ka-milaya [45]

An angle bisector divides the angle into equal halves.

<em>The value of x is 20</em>
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From the question, we understand that GH bisects FGI.

This means that:

$< fgh \: = < hgi$

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$2x - 5 = 3x - 25$

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From the question

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Substitute 20 for x

$< fgh \: = 2 \times 20 - 5$

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Recall that:

$< fgh \: = < hgi$

This means that:

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Read more about angle bisectors at:

brainly.com/question/2478436

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